Use filetype.common's wordchars instead of GEANY_WORDCHARS as default
for filetypes not having their own. This allows to change the
wordchars for all filetypes at once.
Part of issue #492.
Right now users are confused when various VTE actions don't work because
there's no indication that the terminal is in the non-clean state.
Visualise "modified" terminal in the same way as modified document - by
a red label in the tab so it's clearer when terminal isn't clean.
Avoid quick red flashes when pressing enter by delaying the color change
a bit.
Use the same variable style for simple interpolations ("$foo") than for
complex ones ("${foo}") instead of using the string style itself. This
gives a visual feedback for simple interpolations.
In principle, any scrolled window should have GTK_SHADOW_IN so the scrollbars
are not above the surface and there is a frame around the scrolled area.
The only exception are the elements of the main window where adding
GTK_SHADOW_IN causes there are too many shadows (or lines in 2D themes)
around the windows and the result isn't nice. So use GTK_SHADOW_NONE
for all main editor scrolled windows. (One additional exception is the
Help->Credits page which is gray and the extra frame doesn't look good.)
Replace frame around VTE with GtkViewport to avoid the extra line around.
Raise the second editor from the splitwindow plugin so it's at the same
level as the main editor.
Also remove extra padding around the button's image to reduce its size
and try and avoid it expanding the tab's height.
This at least fixes the editor tabs height on Adwaita theme, where they
were 1px taller than normal.
The "rules hint" property is used to tell the theme for which TreeView
even/odd rows should have a different color. This is typically used for
long rows or rows which need to be visually separated for some reason.
Currently the Documents sidebar view uses it which doesn't make much
sense because the row is short and neither of the other tabs in the sidebar
use it.
Also don't default to CR if OS is neither Windows nor Unix (including OS X).
There's no other GTK backend right now so it doesn't matter much but
still if something else appears, it will most probably not have CR line
endings.
Make go one of the builtin filetypes, add the parser and update the related
source and config files. While there, remove Rust from [Groups] in
filetype_extensions.conf because it's already a builtin filetype as well.
The parser itself is stolen from the fishman/ctags repo.
